baber/WOPTO huggingface dataset:
Patent GB-361253-A (GB)
Title: Improvements in or relating to the concentration of aqueous solutions
IPC: B01D15/00
Filed: 1931-04-13
Abstract: Aqueous solutions are concentrated by treatment with calcium sulphate poor in water (anhydrite, or mixture of anhydrite and hemihydrate, or the hemihydrate).  The calcium sulphate may be repeatedly used for treating aqueous solutions of decreasing concentration until it is converted into the dihydrate, or the solution to be concentrated may be passed through layers of the sulphate.  The calcium sulphate may be obtained by the decomposition of calcium-containing materials with sulphuric acid, and where acid-containing aqueous solutions are to be concentrated, such as phosphoric or hydrofluoric acid, these acid are treated with the calcium sulphate obtained by decomposition of calcium salts of, for example, phosphoric acid with sulphuric acid.
Patent GB-669509-A (GB)
Title: Improvements in or relating to perspective drawing instruments
IPC: B43L13/14
Filed: 1950-05-03
Abstract: 669,509. Perspective drawing-instruments. VENTRIS, M. G. F. May 3,1950, No. 10980/50. Addition to 627,774. Class 97 (iii). The parent Specification is modified by having the transverse scale a marked on a curved or straight line other than that perpendicular to the reference line b and divided into a number of units such that lines from the centre of the pivot hole c through the divisions of the transverse scale a divide a line a<SP>1</SP> perpendicular to the reference line b into a number of equal units the angle which the scale subtends at the centre of the pivot hole being substantially bisected by the reference line. As shown, the scale is marked on a circle having. the centre of the pivot hole as its centre.
Patent GB-1217405-A (GB)
Title: Improvements in or relating to electrical regulators
IPC: H02J3/42
Filed: 1968-03-07
Abstract: 1,217,405. Automatic control of current and voltage. ROBERT BOSCH G. m. b. H. March 7, 1968 [March 8, 1967], No.11084/68. Heading G3R. A regulating arrangement for two parrallelconnected shunt-wound generators 10,11 supplying a load such as a battery 13 and other devices 15 comprises a pair of transistorized voltage and/or current regulators 18,19 controlling the current in respective shunt field windings of the generators 10,11; first and second transducers 23, 24 for converting the respective generator currents into corresponding magnetic fields; and a Hall generator 25 arranged to detect the difference between these two fields, the output of the Hall generator controlling a further regulator 26 which itself controls the regulators 18 and 19 in such a manner as to maintain the currents supplied by the two generators in a desired ratio. The Hall generator is energized by an oscillator, Fig. 3 (not shown). Suitable transistor arrangements for the regulators 18,19 and 26 are described with reference to Fig. 2 (not shown), and the transducing arrangement 22 is described with reference to Figs.4 and 5 (not shown). Reference has been directed by the Comptroller to Specification 1,069,419
Patent GB-343805-A (GB)
Title: A method of manufacturing the bowls or heads of spoons or like metal objects
IPC: B21D53/62
Filed: 1930-04-08
Abstract: 343,805. Spoons and ladles. MARTHINSEN, K. A., 7, Falckenbergsgate, T÷nsberg, Norway. April 8, 1930, No. 11162. [Class 128.] Table-spoons &c. are formed from a blank 1 and have their bowls formed in the following steps. The portion A, Fig. 1, is acted on by dies in a press till it assumes the form of Fig. 2. Under the action of an air or spring hammer, the centre portion is then caused to assume the correct thickness relative to the edges. Dies 2, 3, Fig. 3, then remove swaging marks and shape the bowl, which is given its final shape in another die.
Patent GB-786095-A (GB)
Title: Cushion plates for the closure members of grid-type valves
Inventor: MUCKLEY HENRY EDWARD
IPC: F04B39/10
Filed: 1955-04-19
Abstract: 786,095. Valves. BELLISS & MORCOM, Ltd. Nov. 22, 1955 [April 19, 1955], No. 11229/55. Class 135. In a valve for e.g. an air compressor, having a thin grid-like, centrally supported closure member k, Fig. 4, and a resilient or spring- loaded cushion plate a, Figs. 1, 4, both situated between a guard plate u and a grid-like seat n, the cushion plate has a pair of deflectable arms c interconnected at their inner ends by a ring i closely fitting a central aperture in the valve k, and branches d from the arms having free ends providing abutments for springs y. As shown, the cushion plate of steel or plastic has a diametral arm b secured over a bolt w between the guard plate and a seat washer p and is prevented from rotating by a seat peg passing through a hole t. The two radial arms c have their inner ends riveted at h to the ring i in the metal or plastic closure member. A guard plate pin passes through a hole r in the cushion plate and through a similar hole in the closure member to prevent relative rotational movement.
Patent GB-129436-A (GB)
Title: Improvements in Controlling Devices Primarily Intended for Internal Combustion Engines, and particularly applicable for use on Aircraft.
IPC: B64D31/04
Filed: 1918-07-10
Abstract: 129,436. Blackburn Aeroplane & Motor Co., and Thornton, A. C. July 10,1918. Propelling.-Levers for controlling the throttle valve, magneto, or extra-air inlet of internal-combustion. engines, particularly on aircraft, are mounted on a spindle carried by a fixed frame and are held in any position by diametricallyopposite spring-pressed friction blocks acting on the internal surfaces of open-faced drums. Fig. 2 shows two levers 7, 8 mounted to turn on a spindle 4 fixed to a frame 2 having a segment 1. Fixed to the spindle 4 aro two drums 9, 10 each having an open end which is closed by the boss of the adjacent lever. Each lever has two pins 11. Fig. 4, projecting into slots in two hollow brake blocks 13. 14 pressed apart by spungs 15 arranged around pins 16 extending into the blocks. One of the levers may have a pin 19 projecting across the path of the other lever as shown in Fig. 2, to enable both levers to be moved together.
Patent GB-1340565-A (GB)
Title: Thermal incineration unit
IPC: F23G7/06
Filed: 1971-04-26
Abstract: 1340565 Consuming noxious vapours; heating air for drying UNIVERSAL OIL PRODUCTS CO 26 April 1971 [27 April 1970] 11316/71 Headings F4B and F4G In a device for burning the fumes from an enamelling or curing oven, part of the burnt gases are recycled to the entry to the device. A combustion chamber 1 receives fumes and additional air through a fan 12 delivering into a mixing zone 11, and a burner 19 directs a flame into the combustion chamber proper. A recycle passage 23 returns some of the burnt gases to the mixing zone 11, part of the gases pass through a heat-exchanger 8 to a stack 6, and the remainder of the burnt gases, together with air heated in exchanger 8, are fed to the oven. Part of the fumes by-pass the combustion chamber through a passage 25. In a modification, the recycle and by-pass ducts form annular jackets round the combustion chamber. The recycled gases may be introduced into the combustion chamber through spaced nozzles.
Patent GB-180167-A (GB)
Title: Intermediate cane chutes for sugar cane mills for transferring or conveying the bagasse from one mill to another
IPC: C13B10/06
Filed: 1921-04-19
Abstract: 180,167. Meinecke, J. April 19, 1921. Roller mills. - Relates to cane shoots used in sugar-cane mills for conveying the bagasse from one mill to another. The shoot is formed with oppositely-inclined flat portions disposed at different inclinations and is in the form of a trough enlarged from its feed end towards its apex, where means are provided for supplying a macerating-fluid. The shoot 13 having oppositely-inclined bottom plates 14. 15 is supported by sideplates 16, 17, and the feed-end of the shoot is of less inclination than the discharge end. The part 15 of the shoot is fitted with a flanged coverplate 25 removably bolted in position. The plate 25 is set at a greater inclination than the bottom plate 15 so that the covered portion of the shoot is wider at the discharge than at the inlet end. The pipes 30 for supplying water to the bagasse are supported on brackets 29 on the sides of the shoot. The scrapers 22 at the feed-end of the shoot are cast in and have connection through the pivots 23 with the arms 20 which are adjustable by means of turn-buckle connections 21.
Patent GB-629562-A (GB)
Title: Improvements in and relating to methods and compositions for treating metal surfaces
IPC: C23C22/08
Filed: 1947-04-28
Abstract: Surfaces of iron, zinc, copper, aluminium or their alloys are cleaned-and in the case of iron, zinc or their alloys are also coated -by treatment with an aqueous solution containing both primary and secondary alkali (including ammonium) phosphates having a pH value not less than 5 nor more than 6, the actual pH value being greater than that corresponding to the monobasic phosphate present alone and less than that corresponding to the dibasic phosphate present alone. The solution may also contain 0.1-2.0 per cent of ferric or aluminium ortho-phosphate; an oxidizing agent such as a nitrate, nitrite, organic nitro-compounds, or hydrogen peroxide; ions (0.0002-0.01 per cent) of copper, silver, nickel or ferrous iron; a wetting agent; and an anti-foaming agent.  The invention comprises also compositions of the compounds set out above which are adapted on solution in water to produce the treating solutions referred to, the molar ratio of the primary to the secondary alkali phosphates being preferably between 32:1 and 5.6:1, and the composition being at least 75 per cent alkali phosphates.  Specifications 510,684, 517,049 and 596,876 are referred to.
Patent GB-496182-A (GB)
Title: Improvements in means for supplying heated air to the rooms of a building
IPC: F24H3/06
Filed: 1938-04-14
Abstract: 496,182. Heating air. NEWLIN, H. J. April 14, 1938, No. 11455. [Class 64 (i)] Air is drawn by a fan 24 over the sides of a stove 5 on the wall of a room and through a pipe 19 surrounding the flue 6, and is distributed to the room through a conduit 23 formed by walls 14 around the pipe 19. The fan is placed in a chamber 21 in the roof and delivers the hot air drawn up the pipe 19, together with cold air drawn in, through a passage 30 into the distributing conduit 23 through a casing 25 around the end of the pipe. The relative quantities of hot and cold air supplied are regulated by a thermostatically controlled hinged flap 27. The stove is supported by rails resting upon beams in the walls. Air for combustion is taken from the pipe 19. The air may be humidified by overflow water from a water seal 40 at the top of the chimney.
Patent GB-626054-A (GB)
Title: Interpolymers of ª‡-haloacrylic compounds and polychloro-styrene
IPC: C08F212/14
Filed: 1946-04-15
Abstract: A mixture of a functional derivative of an a -haloacrylic acid and a chlorinated styrene containing 2-5 halogen atoms in the nucleus is copolymerized under heat or ultra-violet light.  The hardness of the copolymer produced may be increased by heating for an extended period, e.g. 24 hours at 120 DEG  C.  The polymerization may be carried out in the presence or absence of diluents for the monomers, e.g. acetone, dioxane and methylene chloride, or in emulsion in water in the presence of soaps, isopropyl naphthalene sodium sulphonate or lauryl sulphate, or by granular polymerization.  Polymerization catalysts may be used, specified are hydrogen, benzoyl, acetyl benzoyl, succinyl and lauryl peroxides, peracetic acid and inorganic perborates.  The preferred haloacrylic acid derivative is methyl a -chloracrylate, others specified are the alkyl esters of a -chlor- and a -brom-acrylic acids, the alkenyl esters, e.g. allyl, methallyl, 2-chloro-allyl, crotyl, oleyl and cyclohexanyl esters, polyhydric alcohol esters, e.g. esters of glycol, glycerol and mannitol, and the amides and nitriles, e.g. a -chloracrylamide and a -chloracrylonitrile.  2.5-Dichlorostyrene is the preferred polychlorostyrene, others listed include the other dichlorostyrenes and tri-, tetra- and pentachlorostyrenes and mixtures thereof.  The interpolymers produced are colourless, have permanent freedom from colour and high transparency, scratch resistance and softening temperature.  They may be readily molded and shaped by grinding and polishing, being particularly useful for the manufacture of lenses. Specification 564,829 and U.S.A. Specifications 2,268,177 and 2,337,681 are referred to.
Patent GB-557473-A (GB)
Title: Improvements in the manufacture of surgical adhesive dressings
IPC: A61L15/24
Filed: 1942-08-18
Abstract: 557,473. Polyvinyl acetal films. DALMAS & CO., Ltd., A. DE ST., and ATHERLEY, S.W. Aug. 18, 1942, No. 11580. [Class 2 (iii)] [Also in Groups VIII and VI] A film of plasticized polyvinyl acetal resin is coated with an adhesive to form a surgical adhesive dressing. The resin, made by condensing hydrolysed polyvinyl acetate with formaldehyde, acetaldehyde, or butyraldehyde, is mixed with a plasticizer such as dimethyl glycol phthalate, di-isobutyl phthalate or triethyl citrate, dissolved in a mixture of acetone, ethyl acetate and trichlorethylene or methylene chloride and trichlorethylene and cast into a film, if desired with a roughened surface as described in Specification 441,988 or with embedded gauze as described in Specification 448,164, [Group VI]. Specification 427,491, [Group VI], also is referred to.
Patent GB-216506-A (GB)
Title: An improved system for controlling or operating apparatus for boring petroleum and other wells
IPC: E21B3/02
Filed: 1924-05-10
Abstract: 216,506. ChÔlon, A. R. R. A. de Mailly-. May 24, 1923, [Convention date]. Bore-hole apparatus.-Well drilling apparatus is driven by an electric motor or an internal combustion or other engine with a constant output through a hydraulic transmission mechanism which comprises a rotary pump of constant speed and variable output acting on one or more receivers the velocity of which is proportional to the output. The transmission may be of the Hele-Shaw type. Specifications 210,755 and 210,756 are referred to.
Patent GB-436958-A (GB)
Title: Improved method of and apparatus for registering printing blocks and/or type for multi-colour printing
IPC: G03F9/00
Filed: 1934-04-18
Abstract: 436,958. Printing - surfaces. BATES, Ltd., R., and BATES, N., 9, Stockton Street, Manchester. April 18, 1934, No. 11643. [Class 100 (ii)] A method of locating printing blocks or type or both relatively to one another in a chase so that an impression therefrom will register with a first impression taken from a chase for a different colour, consists in taking a key print on transparent material from the chase for the first colour, arranging the second chase and the key print in an apparatus which permits the key to be repeatedly applied to the chase in the same relative position, adjusting the chase and key print so that one of the printing elements in the chase registers exactly with the key print, and finally adjusting the remaining printing elements in the chase to register with the key print. As shown, the apparatus for holding the transparent material and the chase comprises a lower frame 1<a> and a hinged upper frame 1 carrying a pair of rollers 7, 10 on which the transparent material 32 is wound. The material is kept in tension by a spring 35 connected to arms 25, 29 loose upon the roller shafts and adapted, after being positioned to tension the spring, to be locked to the shafts by clutch members 27, 21. A limited movement of the band can then be effected by turning one or other of two knobs 33, 34 fixed to the shafts. The chase is secured in the frame 1<a> by adjustable bars 16, 17 and set screws 23, 24. In Fig. 1, the words " zig " and " zag " represent a key point on the transparent material taken from a chase previously locked up in the frame, which now contains a chase 11 carrying blocks 12, 14 for printing borders round these words. By suitable adjustment of the transparent material and of the chase, one of the blocks 12, 14 is brought into correct register with the corresponding word and then necessary alteration of the position of the other block is effected by adjustment of the furniture 15. The set screws 23, 24 may be replaced by toggle mechanism actuated from the front end of the frame.
Patent GB-699008-A (GB)
Title: Improvements in or relating to door locks
IPC: E05B59/00
Filed: 1952-05-08
Abstract: 699,008. Locks. EDDOLLS, W. G. July 21, 1952 [May 8, 1952], No. 11662/52. Class 44 A lock comprises a casing containing two separate lock mechanisms having separate key-ways opening on opposite faces of the casing. As shown, upper and lower compartments 2, 3 each containing locking mechanism with separate bolts 5, 6, are separated by an internal partition 4. The locking mechanisms may be of any type, and may be similar and operable by the same key, or of different types. A spring latch 10 may be included.
Patent GB-795450-A (GB)
Title: Improvements relating to ceramic dielectric materials
Inventor: PLESSNER KARL WOLFGANG
IPC: C04B35/468
Filed: 1956-04-17
Abstract: A ceramic material contains barium titanate, a minor proportion of one or more zirconates and/or stannates of an alkaline earth metal or metals (other than calcium zirconate alone) and up to 1 per cent magnesia relative to the other ingredients.  Oxides or precursors therefor in the required proportions are fired, the product ground, shaped (possibly with temporary binders) and refired.
Patent GB-629964-A (GB)
Title: Improvements in and relating to valves
IPC: F16K17/16
Filed: 1947-05-01
Abstract: 629,964. Pressure-relieving devices for fluids ; valves. SPECIALTIES DEVELOPMENT CORPORATION. May 1, 1947, No. 11753. Convention date, May 7, 1946. [Class 135] A valve for high-pressure fluids has a separate seat in the form of an apertured disc 24 which fractures to allow the passage of fluid when a predetermined pressure occurs in the inlet. As shown, the disc is weakened by a groove 30. The disc may be of moulded plastic material or of copper, nickel or other suitable metal which hardens upon being worked. It is clamped between screw-threaded casing sections 20, 21. The section 20 has an outlet 17 and supports a lever 29 for actuating a spring-loaded valve member 25. The other section 21 is screwed into a container 10 and supports a syphon tube 16. The valve seat proper is formed by a ridge 32 surrounding the aperture 31. In a modification the groove 30 is dispensed with and the disc is formed of relatively thin sheet metal and has a strengthening flange round the seat aperture.
Patent GB-108545-A (GB)
Title: Improvements in Machines for Expressing Oils or Liquids from Seeds, Nuts and other Solids.
Inventor: SCHUELER GEORGE RICHARD
IPC: B30B9/12
Filed: 1916-08-19
Abstract: 108,545. Schueler, G. R. Aug. 19,1916. Fatty oils, extracting by pressure.-Relates to machines for expressing oil from nuts, seeds. meal &c., of the kind which is built up of grooved or perforated metal staves or rings to form an annular chamber at the end of a cylinder in which a compressing-worm works. Material is fed into a hopper D<1>, and forced by screws F, F<1> on a shaft E down an expanding annular space C between metal rings A, B. The liquid is expressed through radial grooves or holes in the rings into a trough K and pipe e<3>, and the solid matter is forced past a bevelled ring 4 supported on springs n, and is cut up by knives S fixed to a nut or ring J at the end of the shaft E. A ring H, clamped between the rings A at a break in the screw threads, is formed with internal ribs h to prevent rotation of the material with the screw shaft, which is made of hollow cage form as shown in Fig. 5, to allow the liquid expressed through the internal rings B to escape tn the central pipe e<3>. The outer rings A, H are held stationary by the rods k and extend above the inner rings B, which are caused to rotate with the shaft by a key E<1>.
Patent GB-1008235-A (GB)
Title: A piston and cylinder unit for fuel oil or petrol injection pumps
Inventor: BACSKADY LORANT
IPC: F02M59/26
Filed: 1964-03-20
Abstract: 1,008,235. Fuel injection pumps. KISMOTORES GEPSYAR. March 20, 1964, No. 11847/64. Heading F1A. In a fuel injection pump, the piston 2 has two delivery-regulating grooves 7 and 8 and the cylinder 1 has two inlet ports 3 and 4, the arrangement being such that only one groove and port are in operation at one time, and when unserviceable due to wear, rotation of the cylinder brings the other groove and port into operation. The regulating grooves 7 and 8 are separated by a piston wall portion 13 extending above the head of the piston and acting to close the inlet port 3 or 4 not in use. The angle e.g. 120 degrees between ports 3 and 4 is equal to the angle between the middle of each groove and the middle of the piston wall portion 13. The cylinder is located in each operating position by groove 11 or 12. The piston head 6 may be inclined.
Patent GB-1027819-A (GB)
Title: A process for the production of polyalkylcyclohexenes and polyalkylbenzenes
IPC: C07C5/52
Filed: 1965-03-19
Abstract: Polyalkylcyclohexenes and polyalkylbenzenes are obtained in equivalent amounts by disproportionation of a polyalkylcyclohexadiene in the presence of an amide of an alkali or alkaline earth metal in liquid ammonia, preferably at - 70 DEG  to 50 DEG  C.
Patent GB-254053-A (GB)
Title: Improvements in or relating to electric accumulators
IPC: H01M50/531
Filed: 1925-05-09
Abstract: 254,053. Allcock, W. H. May 9, 1925. Direct connections between conductors. - A terminal for a storage battery electrode is provided with a fish-tail or other suitably shaped end which has a hole 9 through which the cast metal of the electrode passes and secures the terminal in position.
Patent GB-1210437-A (GB)
Title: Dehydrogenation of organic compounds
IPC: B01J31/02
Filed: 1968-03-12
Abstract: 1,210,437. Acetone; chlorostyrenes; aniline. YEDA RESEARCH & DEVELOPMENT CO. Ltd. 12 March, 1968 [13 March, 1967], No. 12095/68. Heading C2C. [Also in Division C5] Organic compounds are dehydrogenated by contact in the vapour phase and at elevated temperature with a material containing at least one quinone grouping in the molecule and which is a substantially non-volatile solid at said elevated temperature. Said material may simultaneously or subsequently be contacted with a hydrogen acceptor, e.g. oxygen, air or nitrobenzene. In the latter case, aniline is also recovered. Examples describe the dehydrogenation of isopropanol to acetone, and a mixture of monochloroethylbenzenes to chlorostyrenes.
Patent GB-545413-A (GB)
Title: Improvements in or relating to chain
IPC: B65G17/40
Filed: 1940-07-25
Abstract: 545,413. Conveyer chains. DIAMOND CHAIN & MANUFACTURING CO. July 25, 1940, No. 12163. Convention date, July 26, 1939. [Class 24] Conveyer chains, subject to wide temperature variations, such as in lehrs, consist of spaced rows of bars 10, Fig. 1, staggered in adjacent rows, each carrying bushes 11, which abut to space the bars, and through which are passed the joint pins 12. The bushes and bars are interlocked by means of grooves midway of the length of the bushes. For this purpose, in the form shown, the bushes are slotted longitudinally and are sprung into the holes in the bars. Alternatively, the holesin the bars may have a tapered entrance from the ends of the bars and the resilience of the bars relied on to hold the bushes in place. In another arrangement, Fig. 5, the bushes are made in two parts 35, 37. According to further arrangements, the bushes may be slid into place through openings of sufficient width, and the edge of the openings then swaged down to prevent withdrawal. The grooves in the surface of the bushes may be provided on parts of the circumference only, and interlocking means for preventing relative rotation of the bars and bushes may be provided.